[autostr] chan autostr format is incorrect

[kbkpbot]

Describe the bug

when use autostr with chan type, it output a wrong format string. It should proper indent and the type of closed is bool, and it should output true/false not 1/0.

This may related to PR #25857

Reproduction Steps

chanx.v

module main
struct St1 {
        val     int = 5
        another chan f64
}

fn main() {
        ch := chan St1{cap: 10}
        dump(ch)
}

v run chanx.v

Expected Behavior

[chanx.v:9] ch: chan St1{
    cap: 10, closed: false
}

Current Behavior

$ v run chanx.v
[chanx.v:9] ch: chan St1{cap: 10, closed: 0}

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.5.0 412c7b0

Environment details (OS name and version, etc.)

V full version	V 0.5.0 412c7b0
OS	linux, Ubuntu 24.04.3 LTS
Processor	8 cpus, 64bit, little endian, Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz
Memory	8.69GB/15.51GB
V executable	/media/HD/github/kbkpbot/v/v
V last modified time	2026-01-12 14:42:20
V home dir	OK, value: /media/HD/github/kbkpbot/v
VMODULES	OK, value: /home/mars/.vmodules
VTMP	OK, value: /tmp/v_1000
Current working dir	OK, value: /home/mars/v/bug/autostr
Git version	git version 2.43.0
V git status	weekly.2025.52-203-g1a704443-dirty
.git/config present	true
cc version	cc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
gcc version	gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
clang version	Ubuntu clang version 18.1.3 (1ubuntu1)
tcc version	tcc version 0.9.28rc 2025-02-13 HEAD@f8bd136d (x86_64 Linux)
tcc git status	thirdparty-linux-amd64 696c1d84
emcc version	N/A
glibc version	ldd (Ubuntu GLIBC 2.39-0ubuntu8.6) 2.39

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[franksodre]

It's like you said, the formatting is wrong but you can still check if it's closed or not.
Having 0 to false and 1 for true, it's not actually a big deal once it's pretty much implicit.

Those are just my thoughts. I also understand that it could be more meaningful.